Removable sash lock assembly



Spt. 23, 1952 J, w. PRICE REMOVABLE sAsH Loox ASSEMBLY Filed 001'.. 30, 1950 Patented Sept. 23, 1952 t A v432,611,462 REMovABLE sAsH Loon ASSEMBLY Joseph W. Price, Topton, Ba., assignor to "Trahis- Y'portation vSlash Company, Inc., Topton, Pai; a

corporation 'of Pennsylvania i a l Application otooorfso, 195e', sorialivojisase' i-claims. (ci. isa-vg) n 'Tri present invention rentes to metal window to the lancio' aan reactivo'v with the support @tito sash'esr for transportation vehicles and more parf lti'c'sularly to latches for said sa'shes..

The conventional sash latch is i V'tailed in the window sash in such manner that access VAto the latchelernents for adjustment "or repaiifnay be had only by removing the sasli from its casing.'l

A primary object of my invention is to provide a latch assembly .affording accessto" thelatch mechanism and actual removal of the mechanism while the sash remains in the window casing.

A further object is to-provide a latch mechawhichis substantiallyrattleprooi 'under vibration. I

Another Objectis to provide va latchQmecha- Anism` ofl simple constructionaiiording easy asequipped with a 'sashdock accordin'gtfo 'my 1in- .ventibm Said View. illustrating the 'interior ele- V"fents ,ofthev sash` lock in partiallyfwithdrawn state;

Figa is e l 'and latch' 'release 4mecha''nism removed' from the windowsash; Y, t

. Fig. 3 is an elevational view f of' thes'a'sh 'lock infoperative position in the window sash;

" lFig. 41s a sectional view taken alon'gthe line del@ 'of'Fg.r3; v

Fig; 5 is `an elevational View with' a fragment `ofthe sash broken away to show the internal 'mechanism of the lookin operative position;

Fig 6 is a sectional view along the line 6--6 of4v Fig. 5'; and, v

Fig. '1 is a perspective View of a modiiied form ofcover plate and latch-release mechanism .embpdying the principles of the present invention- Referring to Figs. 1 and 2, reference numeral l @represents aowindow sash the lower horizontal member II. of'. which is 4hollow and thereby iadapted toA house fan internal latcha'ssembly designated generally by the reference numeral actuating lever, I1 which is mounted in the cover a prspectiveviewfo'f 'the coveri plate Y '13. Specifically, the assembly consists cfa latch element- I4, a member ,I5 `in which the latch t4 slidably supported, a cover plate vIxwhich is detachably securedto the memberl and a-latchplate and `bymeans of vwhih the latch, maybe y yretracted against pressure of a spring I3 attached urge 'the latch toward an' advanced position wherein the" endA I 9 of vthe latch VVprojects beyond' thte'side eager-t" of the sash ,asziiiustratredy l The meinbr'l consists 'of a'vbase or 'body'element`2| having van' upstanding arm atxeachend,

numbered 225andj23 respectively, and 'an'intermediate aij'm`2d. Eachfof the armshas'a recess, 25,26 and.121 respectively, in the face thereofl` in described.` The base'ZI lof thememberA I5 'seats upon the bottom lwail 2s .of-nie hollow' sash member II ,1 and is secured to the said 'Wall'by screws "29 passing upwardly from the' underside 'of the wall as shown in Fig. 45.. The arm23 rand the proximate endv or kthe base, ZI abuts the inner side of the side member 30 y'0f the Sash and 'is secured tothismember by screws 31 which are ,passedv through the member 3B vfrom the outer edgerthe're'f.' The member I5 thus serves 'to re'- i'nferc'e' and strengthen the joint between 'the sash members I I and 39. As shown, themembe'r 3'is slotted at 32 in alignment With thefla'tch'- receiving recesses 25, 26 'and 21 of the member 'I5 for passage of therend I'9` ofthelatch.' The latch I4 com'pris'es'av major longitudinal portion, 39 otrectangularcross 'se'ctien' which terminates the end I9, said' e'ndubeinfg,` shaped for Ycooperative engagement 'with suitable notches 01' vthe like in. the confronting face of 'the WIOW .one 43. siidabiy mounted on rod a2` isa ushaped stirrup d4 which embraces the end of the part 39, the legs of the stirrup being sufliciently longv to overlap the near side of recess '4l vin p'art.

`39'. A spring 45 is confined between stirrup 44- yand* a Washer 46 at the outer end 43 of theA rod 42, displacement ofv the Washer from the" rod being prevented by the expanded formationu of the latter.

In assembly the portion 39 of the latchti's slidably supported on angular projections 41 in the bottoms of `the recesses 26 rand 21 in the support arms23 and 24 withtheend I9 of the latch projecting through slot3'2 in sash member 3i). The

rear end of the rod-42 occupies the recess 25 in.

.arm 22, the washerf seating against the inner face of said arm, andthe spring exerting pres-` sure against the stirrup 44 and through the stirrup on the proximate end of the part 39 of the latch to project the latter through the slot 32. The movement of the latch under pressure of the spring is limited by the lever I1 which engages the recess 4I as described below.

Access to the support member I5 for insertion and removal of the latch in and from the sash is afforded by an opening 48 in the inner side of the sash, said opening being generally rectangular in shape with circular recesses 5I and 52 in the upper edge thereof near the respective ends. The opening 48 is normally closed by the detachable cover plate I6 as described below.

The cover plate I6 is of generally rectangular shape and has inward bosses 54 and 55 arranged to llt snugly in the recesses 5I and 52 of the opening 48 so as to lposition the cover plate accurately with respect to the opening and to the support member I5. The bosses 54 and 55 register with tapped holes' Vand 51 in the upper ends of arms 22 and 24,' and apertures 58 and 59 '.extend' through the bossesto the forwardface of the plate forreception of screws. 6I and 62 which, entering'the tapped holes SI5'V and 51, secure the plate in place over the opening 48 and against the inner face of the sash.

An 'aperture 63,' 4best shown in Fig. 4, is provided in the cover plate` I6 for reception of a 'cylindrical boss s4 on the1ever l1, said boss neatly fitting the said aperture .and forming a journal for the lever in the plate. The boss has a rectangular projection or key 65 which neatly ts a correspondingly shaped opening 66 in the flat body portion 61 of a member 68 which when secured to the inner end'of the boss by means of a screw 69' and lock washer 1I functions in partV as a washer to secure the lever I1 rotatably'in the cover plate. The member 68 has a narrowtongue 12 `which projects inwardly for engagement in the recess 4I, it being noted that when the tongue occupies the recess it is confined laterally'between the edge of the stirrup 44, underpressure of the spring 45, and the opposite side of the recess, as shown in Fig. 5.

The normal projected position of the latch, shown in Fig. 3, is determined by a lug 13 on the inner face of the cover plate which lies in the path of the tongue 12 and acts as a stop to limit the rotary movement of the lever I1. Thus, with the latch normally extended, the lever will assume the Aposition shown" in Fig.' 3 whereinthe tongue 12 is pressed' by action of spring I8, against the lug 13. Clockwise movement rofthe lever from 'this position (asviewed in Fig. 3) will cause the Ttongueto move Vawayirom the lug and to retract me latch so that the end I9 is withdrawn into the sash. It will be noted that the cover plate I6"has a lug 14 which is arranged to register with the recess 25 and which when the cover is in place projects into land effectively closes the mouth of the recess so as to preclude displacem'ent of the end of the rod 42 from the recess.

As will be apparent the other end ofthe latch is guided in the 'slot 32 so that displacement of the latch from-recesses 26 and 21 is precluded.

An 4'important feature of the device described above is the high degree of accessibility which it affords for repair or adjustment of the latch elements. After removalY of the cover plate by release of th'e two retaining screws 6I and 52, the latch may be readily removed from the support by first withdrawing the end of the rod 42 from the recess 25 and outwardly throughthe opening 48 to an extent permitting the longitudinal movement of the latch required to withdraw the outer end from the slot 32. When the latch is thus removed the spring I8 will be retained on the rod 42 by engagement of the washer 46 with the expanded terminal end of the rod. The latch may be readily inserted by a reversal of the removal operations.

It will be noted that in the aforedescribed embodiment, the lever I1 isA designed 4to function both as a latch release device and also as a iinger grip in supporting and manipulating the sash. To this latter end the lever is provided with the outwardly projecting flange 15 along its upper edge to serve as an abutment for the lingers. In the embodiment illustrated in Fig. 1 the finger grip for manipulating the sash is divorced from the latch-retracting lever. Thus, the cover plate 15 is provided with an outwardly extending flange 11 which affords a finger grip; and the latch lever 18, which in this case is pocketed in an outwardly bowed portion 19 of the cover plate, has a transverse arm 8| at the top which overlies the flange'11 and is normally elevated above the flange as illustrated. By placing the ngers under the :flange Iand the thumb on top of the arm 8| and by then exerting a force suilcient to depress the arm toward the top of the flange, the latch may be released yand the sash raised or lowered in well known manner. In all other essential respects the embodiment corresponds to the one previously described.

I claim:

1. In a sli-ding metal window sash, artransverse hollow bottom member having 'an elongated opening in the face thereof, an upright side member joining one end of said bottom member Iand having a channel extending inwardly from the outer edge thereof to the interior of the bottom member, a latch supporting element located in the interior of the bottom member at the junction of that member with the side member and having latch receiving recesses opening to the side of the element which confronts the said opening in the bottom member, means for rigidlysecuring said element in place within said bottom member, a latch element slidably and detachably mounted in, said recesses with one end thereof extending freely through said channel, a spring normally resiliently retaining the latch element in extended position projecting 4beyond the said outer edge of the side memben'the said elongated opening being dimensioned and arranged to permit'insertion and removalv of said latch element from said recesses, a detachable cover plate for said opening, and a latch retracting device carried by, and including an actuating element on, the outer face of said cover plate.

2. A window sash according to claim 1 wherein the cover plate comprises means obstructing and effectively closing the mouth ofI one of said recesses.

3. In a metal window sash a transverse hollow bottom member having an elongated opening in the face thereof, an upright side member joining one end of said bottom member and having a channel extending inwardly from the outer edge thereof to the interior of said bottom member. a latch element slidably and detachably mounted in said hollow bottom member with one end thereof extending freely through said channel for advance and retractive movements therein, a latch supporting element of relatively heavyV metal in comparison to the other structural elements of the sash located in the interior of the bottom member at the junction of that member with the side member and having means for supporting and guiding said latch member for said advance and retractive movements, said element comprising an elongated base portion adapted to seat within said hollow bottom member ush against the bottom wall thereof, said base portion having an upstanding arm at each end thereof, the said forward arm arranged flush against said upright side member, screw means penetrating said bottom wall of the bottom member into threaded engagement with said base portion, other screw means penetrating said upright side member into threaded engagement with the said forward upstanding arm so as to afford extended rigid surface contact between said sash members and said support for transmission to the former of thrusts imposed through the latch member upon the sash, said latch-supporting and -guiding means comprising recesses in said upstanding arms opening to the side of the element which confronts the said elongated opening in the face of the bottom member, the said elongated opening being dimensioned and arranged to permit insertion and removal of said latch element in and from said recess, a detachable cover plate for said opening, and a latch-operating device carried by and including an actuating element on the outer face of said cover plate.

4. A sash according to claim 3 wherein said base portion is provided with a third recessed upstanding arm intermediate said forward and rear arms and comprises tapped holes at the junctions of said intermediate and rear upstanding arms with said base member for the reception of said base-securing screw means and wherein further the free ends of said intermediate and rear arms are provided with tapped holes for releasably securing said cover plate to the support element.

5. In a metal window sash a transverse hollow bottom member having an elongated opening in the face thereof, an upright side member joining one end of said bottom member and having a channel extending inwardly from the outer edge thereof to the interior of said bottom member, a latch-supporting element of heavy. metal in comparison to the other structural elements of the sash located in the interior of the bottom member juncture of that member with the side member, and having receiving recesses opening to the side of the element which confronts the said opening in the bottom member, said element comprising an elongated base portion adapted to seat Within the channel of said bottom member and having an upstanding arm at the forward and rearward ends thereof, each said arm containing one of said latch-receiving recesses, means for rigidly securing said element in place within said bottom member, a latch element slidably and detachably mounted inv said recesses with one end thereof extending freely through said channel, a spring seating against the rearward upstanding arm normally resiliently retaining the latch element in extended posi- Y tion projecting beyond the said outer edge of the side member, the said elongated opening being dimensioned and arranged to permit insertion and removal of said latch element from said recesses, a detachable cover plate for said open-A ing, and a latch-operating device carried by and including an actuating element on the outer face of said cover plate.

6. A sash according to claim 5 wherein the forward upstanding arm abuts the interior side of said upright side member, and wherein further means is provided for rigidly securing said side member to said forward arm.

7. A sash according to claim 5 wherein said latch-supporting element includes a third upstanding arm intermediate said forward and rearward arms, said third upstanding arm containing one of said latch-receiving recesses, and wherein the said -cover plate is detachably secured to said rearward and said third upstanding arms.

JOSEPH W. PRICE.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,857,295 Ehret May 10, 1932 2,033,085 Schunk Mar. 3, 1936 `2,177,463 Schunk Oct. 24, 1939 2,233,643 Schunk Mar. 4, 1941 2,409,711 Schunk Oct. 22, 1946 

